Notes of Biomedical signal processing

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University: Politecnico di Milano
Degree programme: Biomedical Engineering
Subject: Biomedical Signal Processing and Medical Images
Classification: Notes · Complete set
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Biomedical signal processing Course for the Master Degree in Information Bioengineering Author: Viola Luppi Professor: Maria Gabriella Signorini Academic year 2023/2024 Contents 1 Electrocardiogram 3 1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 ECG leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.3 Cardiac electric activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 1.4 Arrhythmias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Spectral Anlysis 6 2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2 Descrete Fourier Transform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 Power spectrum of a sampled signal . . . . . . . . . . . . . . . . . . . . . . . . . 7 2.4 Power spectrum: stationary stochastic processes . . . . . . . . . . . . . . . . . . 8 2.5 The Schuster periodogram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 3 Heart rate variability 12 3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.2 HR V and ECG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 3.3 Spectral analysis of HR V signal . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 4 Cross spectral analysis 20 4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 4.2 Non-parametric cross-spectrum estimation . . . . . . . . . . . . . . . . . . . . . 21 4.3 Quadratic Coherence Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4.4 Transfer function estimation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 5 Arterial Blood Pressure 24…

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